CONTENTS. 



Page. 



Introduction 7 



Sources and descriptions of samples 8 



Methods of analysis and analyses of samples 13 



1 *aris greens 13 



Methods of analysis and discussion 13 



Analyses and discussion 17 



L< >ndon purples 19 



Methods of analysis and discussion 19 



Analyses and discussion 21 



Insecticides and fungicides, other than Paris Green and London Purple, 



that contain arsenic or copper, or both, as their active constituent 23 



Methods of analysis, analyses and discussion 23 



( i reen A rsem id 25 



Scheele ( Ireen 25 



Paragrene 26 



Laurel Green 26 



Bordeaux Mixture and Paris Green 27 



North State Insecticide 27 



Slug Shot 28 



Black Death 28 



Swift's Lead Arsenate 29 



White Arsenoid 29 



White Arsenic 30 



Rough on Rats 30 



Royal Roach Powder 30 



Lee's Insect Powder 31 



Dry Bordeaux Mixture 31 



Hammond's Copper Solution 31 



Copper Sulphate 32 



Grape Dust 32 



Soaps 32 



Methods of analysis and discussion 32 



Analyses and discussion 35 



Hellebores 36 



Methods of analysis and discussion 36 



Analyses and discussion 37 



Pyrethrums 38 



Methods of analysis and discussion .' 38 



Analyses and discussion 39 



M i x tn res containing borax 40 



Methods of analysis and discussion 40 



Analyses and discussion 42 



5 



